During human embryonic development, the formation of the primitive streak marks a crucial step. Which of the following statements regarding the primitive streak is INCORRECT?
It marks the beginning of gastrulation.
It defines the embryo's axes.
It is the source of mesoderm and endoderm.
It persists throughout development.
Related Questions
Which of the following cellular processes is responsible for the formation of interfascicular cambium from differentiated parenchyma cells in dicot stems?
Totipotency
Dedifferentiation
Redifferentiation
Differentiation
Phellem is formed by phellogen through
Differentiation
Dedifferentiation
Redifferentiation
Plasticity
Unlike the formation of vascular tissues from procambium, the development of interfascicular cambium from parenchyma cells represents:
Redifferentiation
Dedifferentiation
Differentiation
Cell maturation
Which process is demonstrated by the formation of interfascicular cambium from fully differentiated parenchyma cells?
Differentiation
Redifferentiation
Cell elongation
Dedifferentiation
The development of interfascicular cambium from mature parenchyma cells between vascular bundles exemplifies:
Redifferentiation
Differentiation
Dedifferentiation
Plasticity
In plants, the conversion of permanent tissues like parenchyma to meristematic tissue like interfascicular cambium is an example of:
Redifferentiation
Differentiation
Dedifferentiation
Senescence
